Cement lasted shoes having a perforated welt



March .959 A. RUBICO 2,876,469

CEMENT LASTED SHOES HAVING A PERFORATED WELT Filed Oct. 7, 1955 IN VENTOR.

jg a Man 7 ,M W $27M United States Patent CEMENT LASTED SHOES HAVING APERFORATED WELT Jerome A. Rubico, Boston, Mass., assignor to Wright-Batchelder Corporation, Boston, Mass., a corporation of MassachusettsApplication October 7, 1955, Serial No. 539,218

2 Claims. ('Cl. 12-142) This invention comprises within its scope a newand improved shoe of the cement lasted or Compo type, a novel process ofmaking the shoe, and a new type of welting employed in its construction.

An object of the invention is to provide cement lasted shoes with adecorative bead that greatly enhances their ornamental appearancewithout in any way impairing structural strength or adding objectionablebulk to its fine lines or style. The bead is incorporated in a weltstrip of synthetic resinous material and may be readily supplied in anydesired color contrasting or blending with the shoe upper. It may alsobe varied in dimensions from a band of substantial width to a delicatestripe or line.

The beaded welt of my invention is provided with a perforated attachingflange adapted to be laid over and upon the lasted margin of the upperand between the lasted margin and a sole or midsole. The flange mergesat its outer edge into an upstanding bead that encloses portions of theupper and the contiguous sole and so forms a decorative element betweenthe two.

The problem of permanently securing the welt in place by practicableshoemaking steps requiring no special skill on the part of the operatorhas been solved by the process of the present invention. In accordancetherewith a layer or ribbon of cement is first laid upon the lastingmargin, the perforated welt is applied with its attaching flangeimpressed upon the cement layer so that cement wells up in theperforations of the flange. The cement system is completed by laying asecond cement layer or ribbon upon the attaching flange in such a mannerthat the cement of the two layers merges through the perforations of theattaching flange. Now, when the sole is laid under pressure, it becomesbonded in the shoe bottom by adhesive attachment with the cement systemwhich extends from the lasting margin through and about the perforatedattaching flange of the welt.

These and other features of the invention will be best understood andappreciated from the following description of a preferred embodimentthereof selected for purposes of illustration and shown in theaccompanying drawings in which:

Fig. 1 is a view in perspective of a short piece of perforated weltingemployed in the construction of the shoe,

Fig. 2 is a plan view of the shoe bottom with portions broken away,

Fig. 3 is a fragmentary view in elevation of the forepart of thefinished shoe, and

Fig. 4 is a fragmentary sectional view of the shoe bot-, tom on agreatly enlarged scale.

The perforated welt as shown in Fig. 1 has a pinked attaching flange ofwhich each element is formed with a triangular perforation 11symmetrically arranged so that each wedge-shaped element formed by thepinking notches has side walls of uniform width. It is important thatthe attaching flange should be pinked in order that the welt may bereadily conformed to the curvature of the shoe bottom, while the shapeof the perforations is of secondary importance so long as they furnish aseries of regu- 2,876,469 Patented Mar. 10, 1959 larly spaced wells orcavities in the flange. The attaching flange merges outwardly into anupstanding head 12 having a smoothly curved outer surface and a curvedinner wall merging through a fillet into the upper surface of theattaching flange. As shown in Fig. 1 it will be seen that the bead 12overhangs a portion of the attaching flange.

The improved process of the invention and the manner of utilizing thewelt of Fig. 1 is well illustrated in Fig. 2 which shows the bottomof alasted shoe in which the overlasted margin 13 is cemented to an insole14. In proceeding with the process a layer or ribbon of cement 15 islaid upon the lasting margin 13 and then the welt is applied and itsperforated attaching flange 10 pressed into the cement layer 15 so thatthe cement wells up in the perforations 11 of the flange from theunderlying surface of the upper. After the welt has been laid, a secondlayer or ribbon of cement 16 is placed upon the attaching flange and itthereupon merges with the cement of the lower layer 15 which has alreadywelled up in the perforations 11. A cement system is thus formed whichstarts with the overlasted margin 13 and presents an exposed adhesiveface above the attaching flange of the welt. The cement which fills theperforations 11 of the attaching flange existsin the system as sprues orslugs that merge at their ends into the underlying and overlying layersof cement 15 and 16.

A bottom filler is now inserted in the space formed by the lasted margin13 and this may take the form of a felt blank 17 as shown in Fig. 2 orit may be formed of plastic bottom filler.

An outsole or midsole 18 is now laid on the shoe bottom in accurateposition and adhesively bonded in place by pressure, and heat ifnecessary, through the medium of the cement system above described. Itwill be seen that the bead 12 of the welt closely embraces the upper 19adjacent the sole edge as shown in Figs. 3 and 4. In Fig. 4 is shown aportion of the last 20 and in this figure the thickness of the adjacentlayers 15 and 16 is greatly exaggerated in order that their location maybe readily seen. In practice there is no visible separation between theflange 10 of the welt and the sole 18. The appearance of the finishedshoe is more accurately shown in Fig. 4.

In carrying out the process as above described the perforated welt islaid upon the cement-carrying lasted margin of the upper but it iscontemplated that in some cases it may be more convenient to place aband of cement on the inner marginal face of the sole or midsole and laythe perforated Welt thereon. The sole with the attached welt is thenlaid on the shoe bottom and the welt brought into contact with thecement band 15 previously applied to the lasted margin 13. In eitherprocedure the cement may be activated by heat or solvent when that isdesirable. By either procedure the same shoe structure and the samecement system is arrived at.

Having thus disclosed my invention and described in detail illustrativeembodiments or examples of its three phases, I claim as new and desireto secure by Letters Patent:

1. The process of making shoes which is characterized by the steps ofcement-lasting the upper, coating the overlasted margin with a ribbon ofcement, laying a beaded welt having a perforated attaching flange uponsaid cement and causing the cement to well upwardly from the underlyingsurface of the upper through the perforations of the attaching flange,coating the attaching flange with cement which merges with that alreadyin its perforations, then laying a sole and securing it in the shoebottom by bonding with the cement system as described which includessprues or slugs of cement that merge at their ends into underlying andoverlying adhesive layers upon the sole and the upper respectively.

2. The process of making shoes which is characterized by the steps oflayinga ribbon of soft cement upon the overlasted margin of the upper,pressing upon the cement ribbon at welt having an attaching flange withspaced triangular perforations therein and thus causing cement to flowupwardly from the underlying surface of the upper in the form of spruesin the perforations of the attaching flange, spreading a second ribbonof cement across the upper ends of the sprues thus connecting the twocement layers as spread upon the sole and margin of the upperrespectively, and then bonding a sole to the cement exposed in the shoebottom.

References Cited in the file of this patent Daniels Apr. 21, 1931 4 MaySept. 4, Goddu Jan. 1, Casanova Jan. 12, Condon --2. Mar. 16, VizardAug. 24, Mackensen Dec. 26, Brophy Sept. 2, Forslund Sept. 30, FoustJuly 10, Batchelder et a]. Nov. 20, Beestrum July 27,

FOREIGN PATENTS Switzerland Mar. 1, France -3 Nov. 23, France Jan. 27,

